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Monosodium orthophosphate |
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Executive standard: |
HG/T 2767-1996 |
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Molecular formula: |
2NaH2PO4·XH2O(X=0, 1, 2) |
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Molecular weight: |
156.01 |
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Property: |
Waterless monosodium orthophosphate is white powder, melting point: 190℃; Monohydrate is white powder or crystal, density: 2.040, melting point: 100℃; Dihydrate is white granule crystal, density: 1.915, melting point: 57.40℃; Dissolving in water, insoluble in organic solvent, deliquescent in the open air. |
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Application: |
It can be used in biological preservatives, galvanization phosphating, food and feed industry. It also can be used as buffering agent, emulsifier, nutritional agent, etc. |
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Packing: |
Woven bag lined with plastic film, net weight25.50kg, storing in ventilated and dry place. |
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Quality standard:
| No. |
Item |
Index |
| Premium grade |
First |
Qualified |
| 1 |
Content(calculated NaH2PO4·XH2O) = |
98.5 |
98.0 |
97.0 |
| 2 |
Water insoluble content = |
0.10 |
0.15 |
0.20 |
| 3 |
Iron(Fe)content = |
0.05 |
0.10 |
... |
| 4 |
Arsenic(calculated As)= |
0.005 |
... |
| 5 |
Alkalinity(calculated Na2O)= |
18.8-20.0 |
18.8-21.0 |
| 6 |
Sulphate(calculated SO2-4)content = |
0.3 |
0.5 |
... |
| 7 |
Chloride(calculated Cl-)content = |
0.20 |
0.40 |
... |
| 8 |
Heavy metal(calculated Pb)content = |
0.005 |
... |
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